package com.itheima.day05_Lambda;

public class LambdaTest4 {
    public static void userShowHandler(Calculator handler) {
        String s4 = "Lambda表达式";
        String s5 = "Lambda表达式";
        Calculator calc = (s1, s2) -> s1+s2;
        System.out.println(calc.calc(s4, s5));


    }
}
